Mr. Optimism on Nostr: Yes, but there are other (and very unpredictable) matters to take into consideration ...

Yes, but there are other (and very unpredictable) matters to take into consideration such as the generational rate of technological advancement (outside of decentralized tech), how these advancements are utilized, the increase or decline in geopolitical tensions, and the global impact of decentrentralized technology. There's always the possibility that the stability which you're referring to may not last a millenia but a century and then be stalled by a decade or half of that. In short, an increase in the rate of technological advancement seems to have led to a decrease in length of peaceful cuktural engagement.